Add or subtract as indicated.
- 
A. 6
B. 
C. 
D. 6x
Answer: A
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The given pattern continues. Write down the nth term of the sequence {an} suggested by the pattern.1, 
, 
, 
, ...
A. an = 
B. an = 
C. an = 
D. an = 
Evaluate the expression x - y for the given values of the variables.x = 9, y = 13
A. -22 B. 22 C. 4 D. -4
Provide an appropriate response.The number of loaves of whole wheat bread left on the shelf of a local quick stop at closing (denoted by the random variable X) varies from day to day. Past records show that the probability distribution of X is as shown in the following table. Find the probability that there will be at least three loaves left over at the end of any given day. 
A. 0.20 B. 0.65 C. 0.35 D. 0.15
Pivot once about the circled element in the simplex tableau, and read the solution from the result. 
A. x1 = 6, s1 = -6, z = 6; x2, x3, s2 = 0 B. x1 = 12, s1 = 42, z = 12; x2, x3, s2 = 0 C. x1 = 12, s1 = 6, z = 12; x2, x3, s2 = 0 D. x1 = 12, s1 = -6, z = 12; x2, x3, s2 = 0